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Last updated on May 26th, 2025

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CMLXXXVIII Roman Numerals

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To meet their daily commerce and administration needs, the ancient Romans developed Roman Numerals. It used a combination of seven symbols — I, V, X, L, C, D, and M to represent numbers. Roman numerals were used to record transactions, keep track of data, and label military units. In this topic, we are going to learn about the Roman numeral CMLXXXVIII.

CMLXXXVIII Roman Numerals for Indian Students
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What is CMLXXXVIII in Roman Numerals?

Ancient Romans discovered that counting fingers could get very complicated after 10. To overcome this complexity, the Roman numeric system was developed.

 

This was widely used throughout Europe as a standard writing system until the late Middle Ages. Seven symbols are used to represent numbers in the Roman numeric system — I, V, X, L, C, D, and M.

 

The numerals are made up of different combinations of these symbols. CMLXXXVIII in Roman numerals can be written in number form by adding the values of each Roman numeral, i.e., CMLXXXVIII = 988.

 

Let us learn more about the Roman numeral CMLXXXVIII, how we write it, the mistakes we usually make, and ways to avoid these mistakes.

cmlxxxviii roman numerals

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Basic Rules for CMLXXXVIII in Roman Numerals

When writing Roman numerals, there are a few rules that we need to follow based on the Roman numerals we are trying to write. In this section, we will learn about the rules when writing Roman numerals and how to represent them. Rule 1: Addition Method: When a larger symbol is followed by a smaller symbol, we add the numerals to each other. For example, in VIII, we have 5 + 3 = 8. Rule 2: Repetition Method: A symbol repeated up to three times in succession increases the value of the numeral. For example, XXX = 30. Rule 3: Subtraction Method: We use the subtraction method when a smaller symbol precedes a larger symbol. For example, XL = 40 (which is 50 – 10). Rule 4: Limitation Rule: Symbols cannot be repeated more than three times, and some symbols, such as V, L, and D, cannot be repeated more than once. For example, 10 is represented as X and not VV.

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How to Write CMLXXXVIII in Roman Numerals?

Let us learn about how to write CMLXXXVIII in Roman numerals. There are two methods that we can use to write Roman numerals:

 

  • By Expansion Method
  • By Grouping Method
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CMLXXXVIII in Roman Numeral by Expansion Method

The breaking down of Roman numerals into parts and then converting them into numerals is what we call the expansion method. The expansion method involves breaking down Roman numerals into numerical form and adding them to get the final number. For CMLXXXVIII:

 

Step 1: Break the Roman numerals into parts. CMLXXXVIII = CM + L + X + X + X + VIII

 

Step 2: Write the Roman Numerals for each part

  • The Roman Numeral CM is 900

 

  • The Roman Numeral L is 50

 

  • The Roman Numeral X is 10

 

  • The Roman Numeral VIII is 8

 

Step 3: Combine all the numbers CM + L + X + X + X + VIII = 900 + 50 + 10 + 10 + 10 + 8 = 988. Therefore, the Roman Numeral CMLXXXVIII is 988.

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CMLXXXVIII in Roman Numeral by Grouping Method

Using subtraction and addition rules, we will apply the grouping method. This means we break the Roman numerals into smaller groups, which makes it easier to work with. This method groups the Roman numerals logically, and then we write the numbers for each group. Example: Let’s take the Roman numeral CMLXXXVIII.

 

Step 1: Begin with the largest Roman numerals. Once split, the Roman numerals are CM, L, XXX, and VIII. The numeral for CM is 900 The numeral for L is 50 The numeral for XXX is 30 The numeral for VIII is 8

 

Step 2: Add the values of each group. CM + L + XXX + VIII = 900 + 50 + 30 + 8 = 988. Therefore, the numeral of CMLXXXVIII is 988.

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Common Mistakes and How to Avoid Them in CMLXXXVIII Roman Numerals

Students can make mistakes when studying Roman numerals. Here are a few common mistakes students make and ways to avoid them.

Mistake 1

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Mistakes when applying the repetition method

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It can be quite confusing for beginners to remember that Roman Numerals cannot be repeated more than three times. Another thing to keep in mind is that Roman Numerals such as V, L, and D cannot be repeated.

For example, writing LL as 100 is incorrect; the correct answer is C.

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CMLXXXVIII Roman Numerals Examples

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Problem 1

Calculate the sum of CMLXXXVIII and XII. Provide the answer in Roman numerals.

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The sum is M.

Explanation

Convert both Roman numerals into their decimal form: CMLXXXVIII = 988

XII = 12

Now add both numbers: 988 + 12 = 1000

Convert the number into its Roman numeral: 1000 = M

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Problem 2

What is the difference between M - CMLXXXVIII? Provide the answer in Roman numerals.

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The difference is XII.

Explanation

Convert the Roman numerals into their decimal form: M = 1000

CMLXXXVIII = 988

Now subtract the numbers: 1000 - 988 = 12

Convert the number into its Roman numeral: 12 = X + II = XII

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Problem 3

Divide CMLXXXVIII by 4 and express the answer in Roman numerals.

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CCXLVII

Explanation

Convert CMLXXXVIII into its decimal form: CMLXXXVIII = 988

Divide by 4: 988 / 4 = 247

Convert 247 into Roman numerals: 200 (CC) + 40 (XL) + 7 (VII) = CCXLVII

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Problem 4

What is the product of CMLXXXVIII and II?

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MCMLXXVI is the product of CMLXXXVIII and II.

Explanation

Write CMLXXXVIII and II in numbers: CMLXXXVIII = 988

II = 2

Multiply the numbers: 988 × 2 = 1976

Convert 1976 into Roman numerals: 1000 (M) + 900 (CM) + 70 (LXX) + 6 (VI) = MCMLXXVI

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Problem 5

Convert CMLXXXVIII into its decimal form.

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In decimal form, CMLXXXVIII is 988.

Explanation

Break CMLXXXVIII into components: CM = 900

LXXX = 80 (L + X + X)

VIII = 8 (V + I + I + I)

Add values: 900 + 80 + 8 = 988

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FAQs on CMLXXXVIII in Roman Numerals

1.What is LXXXVIII in Roman numerals?

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2.Is CMLXXXVIII a prime number?

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3.What is CMLXXXVIII + XII?

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4.What is DCCC?

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5.Subtract LXXXVIII from CMLXXXVIII

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6.How can children in India use numbers in everyday life to understand CMLXXXVIII Roman Numerals?

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7.What are some fun ways kids in India can practice CMLXXXVIII Roman Numerals with numbers?

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8.What role do numbers and CMLXXXVIII Roman Numerals play in helping children in India develop problem-solving skills?

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9.How can families in India create number-rich environments to improve CMLXXXVIII Roman Numerals skills?

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Important Glossaries for CMLXXXVIII in Roman Numerals

  • Subtraction Method: A method where a smaller numeral is placed before a larger numeral to indicate subtraction. For example, IX is 9.

 

  • Addition Method: When numerals are placed from largest to smallest, their values are added. For example, VI is 6.

 

  • Limitation Rule: Certain symbols like V, L, and D cannot be repeated. For example, VV is not used for 10; instead, X is used.

 

  • Place Value: The value of a digit in a numeral based on its position. For example, the numeral X in CMLXXXVIII represents 10.

 

  • Numerical Expansion: The process of breaking down Roman numerals into their individual components for easier understanding and computation.
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Hiralee Lalitkumar Makwana

About the Author

Hiralee Lalitkumar Makwana has almost two years of teaching experience. She is a number ninja as she loves numbers. Her interest in numbers can be seen in the way she cracks math puzzles and hidden patterns.

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Fun Fact

: She loves to read number jokes and games.

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